Sole nail

ABSTRACT

A sole nail comprises an assembly post having a plurality of rubber claws; the assembly post having a via hole forming an upper and a lower opening in the assembly post; a part of the assembly post having thread; an elastomer enclosing an periphery of the assembly post having thread; a steel nail passing through the via hole of the assembly post; an upper end of the elastomer resisting against a bottom of the steel nail; a seat having a screw hole penetrating through the seat; the seat being engaged into a lower sole of shoe; and a waterproof pad made of soft rubber; a bottom of the waterproof pad corresponding the steel nail being formed with a groove; and an upper sole covering upon the waterproof pad.

FIELD OF THE INVENTION

The present invention relates to sole nails of soles, and particular to a steel nail of a sole which can reduce into a groove of the sole automatically and thus the steel nail will not destroy the ground or grasses on the ground. The steel nail generates a larger friction force to the ground so that the shoe has a preferred slide-proof effect.

BACKGSEMI-ROUND OF THE INVENTION

In the prior art, a plurality of claws are integrally embedded into a sole. However, this will remove the earth so as to destroy the grass on the earth. However, this prior art is inhibited in golf field. If the shoes with these claws move on a hard ground, such as stone plates and tiles so that the user easily slides so as to fall to the ground.

To improve above-mentioned prior art, an improvement is provided. An assembly post 1 with thread 2 is placed in an integrally formed rubber claws 3. A seat with threaded hole 5 is integrally formed with a lower sole 6 and a middle sole is placed upon the lower sole 6. The sole has a preferred ground fixing effect by installing the rubber claws 3. Thereby, the sole can reduce the affect of destroying the ground and grasses on the ground. However, this prior art has no steel nail to insert into the ground so that the fixing effect is not preferred. This is especially apparent in raining day. Moreover, this structure is made by rubber so that it is not rub-endurable.

SUMMARY OF THE INVENTION

Accordingly, the primary object of the present invention is to provide a sole nail which comprises an assembly post having a plurality of rubber claws; the assembly post having a via hole forming an upper and a lower opening in the assembly post; a part of the assembly post having thread; an elastomer enclosing an periphery of the assembly post having thread; a steel nail passing through the via hole of the assembly post; an upper end of the elastomer resisting against a bottom of the steel nail; a seat having a screw hole penetrating through the seat; the seat being engaged into a lower sole of shoe; and a waterproof pad made of soft rubber; a bottom of the waterproof pad corresponding the steel nail being formed with a groove; an upper sole covering upon the waterproof pad. When the shoe dose not tread the ground, the groove of the waterproof pad will reduce the steel nail without protruding out of the bottom of the rubber claws; and when the shoe treads a soft ground, the soft upper sole and the waterproof pad will press the steel nail to protrude out of the soft rubber so as to be nailed into a soft ground.

The various objects and advantages of the present invention will be more readily understood from the following detailed description when read in conjunction with the appended drawing.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an exploded perspective view of the prior art.

FIG. 2 is a schematic cross view of the prior art.

FIG. 3 is an exploded perspective view and bottom view (a) of the present invention.

FIG. 4 is an assembled cross section view of the present invention.

FIG. 5 is a cross section view of the present invention wherein the shoe is lifted from the ground.

FIG. 6 shows a state that the shoe treads upon the ground.

FIG. 7 is an exploded perspective view showing that the elastomer is assembled into the assembly post.

FIG. 8 is an assembled cross section view of FIG. 7.

FIG. 9 is a cross section view showing that an enhancing sheet is installed in the groove of the waterproof pad.

FIG. 10 is a cross section view of the elastomer of the present invention, which has a cylindrical shape.

DETAILED DESCRIPTION OF THE INVENTION

In order that those skilled in the art can further understand the present invention, a description will be described in the following in details. However, these descriptions and the appended drawings are only used to cause those skilled in the art to understand the objects, features, and characteristics of the present invention, but not to be used to confine the scope and spirit of the present invention defined in the appended claims.

With reference to FIGS. 3, 4 and 5, the present invention comprises the following elements.

An assembly post 10 has a plurality of rubber claws 13. The assembly post 10 has a via hole 12 forming an upper and a lower opening (not shown) in the assembly post 10. A part of the assembly post 10 has thread 11.

An elastomer 23 encloses a periphery of the assembly post 10 having the thread 11.

A steel nail 22 passes through the via hole 12 of the assembly post 10. An upper end of the elastomer 23 resists against a bottom of the steel nail 22.

A seat 20 has a screw hole 21 penetrating through the seat 21. The seat 20 is engaged into a lower sole 6 of shoe (not shown).

A waterproof pad 30 is made of soft rubber. A bottom of the waterproof pad 30 corresponding the steel nail 22 is formed with a groove 31. An upper sole 7 covers upon the waterproof pad 30. When the shoe with the present invention dose not tread the ground, the groove 31 of the waterproof pad 30 will reduce the steel nail 22 without protruding out of the bottom of the rubber claws 13. When the shoe treads a soft ground, the soft upper sole 7 and the waterproof pad 30 will press the steel nail 22 to protrude out of the soft rubber 13 so as to be nailed into a soft ground.

Assembly of the present invention will be described herein. The seat 20 of the present invention is substantially combined with a lower sole 6 of a shoe. The assembly post 10 having the rubber claws 13 is an integral body. Therefore, in assembly, the elastomer is assembled to the assembly post 10. Then the steel nail 22 is inserted into the via hole 12 of the assembly post. Thereby, the assembly post 10 with the rubber claw 13 is locked into the assembly post 20. Thereby, the elastomer 23 and the steel nail 22 are assembled therein and they are telescopic. The assembly work is simple. Thu the user can assemble the present invention by him or herself so as to assemble the rubber claws 13. Thereby, the elastomer 23 and the steel nail 22 can be updated by himself or herself.

In the present invention, the steel nail 22 can be not used.

Moreover, as shown in FIGS. 7 and 8, the via hole 102 of the assembly post 101 has a small-size lower end and a large-size upper end so as to receive the elastomer 23 and the steel nail 22. However, this will have the same effect as above embodiment.

Moreover, as shown in FIG. 9, an enhancing sheet 32 can be installed in the groove 31 of the waterproof pad 30 and be above the steel nail 22 for buffering the impact force of the steel nail 22 so as to prevent the steel nail 22 to destroy the waterproof pad 30.

Moreover, as shown in FIG. 10, in the present invention, the elastomer 23, 24 is a spring, or a cylindrical rubber so as to drive the steel nail 22 to move upwards or downward.

Advantages of the present invention will be described herein. With reference to FIG. 5, when the sole leaves from the ground, no pressure is applied upon the upper sole 7 and the waterproof pad 30 and thus the groove 31 of the waterproof pad 30 is not compressed. Therefore, the steel nail 22 can retract into the groove 31 so that the nail tip is not protruded from a bottom of the rubber claws 13. When the shoe treads upon the ground, as shown in FIG. 6, the press upon the soles will make the soft waterproof pad 30 to be compressed and deformed so that the steel nail 22 descends. Namely, the tip of the steel nail 22 will protrude out from the bottom of the rubber claws 13. On the contrary, when the shoe leaves from the ground, the waterproof pad 30 will restore. By the elastic force of the elastomer 23, the steel nail 22 will reduce automatically. Simply, the steel nail 22 of the present invention can reduce and protrude out automatically.

Therefore, the steel nail 22 of the present invention can reduce automatically and thus the steel nail 22 will not destroy the ground or grasses on the ground. The steel nail 22 generates a larger friction force to the ground so that the shoe has a preferred slide-proof effect. When the shoe treads upon a hard ground, the steel nail 22 can reduce into the groove 31, while the rubber claws 13 can fix the shoe on the ground. Thereby, the present invention is suitable to hard and soft ground.

Furthermore, the waterproof pad 30 has the effect of preventing water from flowing into the shoe, which is not affected by the penetrating hole in the assembly post 10 and seat 20.

The present invention is thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the present invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims. 

1. A sole nail comprising: an assembly post having a plurality of rubber claws; the assembly post having a via hole forming an upper and a lower opening in the assembly post; a part of the assembly post having thread; an elastomer enclosing an periphery of the assembly post having thread; a steel nail passing through the via hole of the assembly post; an upper end of the elastomer resisting against a bottom of the steel nail; a seat having a screw hole; the screw hole penetrating through the seat; the seat being engaged into a lower sole of shoe; and a waterproof pad made of soft rubber; a bottom of the waterproof pad corresponding the steel nail being formed with a groove; an upper sole covering upon the waterproof pad; wherein when the shoe dose not tread the ground, the groove of the waterproof pad will receive the steel nail without protruding out of the bottom of the rubber claws; and when the shoe treads a soft ground, the soft upper sole and the waterproof pad will press the steel nail to protrude out of the soft rubber so as to insert into soft ground.
 2. The sole nail as claimed in claim 1, wherein the via hole of the assembly post has a small-size lower end and a large-size upper end so as to receive the elastomer and the steel nail.
 3. The sole nail as claimed in claim 1, wherein an enhancing sheet is installed in the groove of the waterproof pad and be above the steel nail.
 4. The sole nail as claimed in claim 1, wherein the elastomer is one of a spring and a cylindrical rubber. 